from ver.7 of android by adding webapp to device home screen, chrome logo appear in bottom right corner of icon for added item, and this is not good. for solve this problem, best suggestion for me is using webAPK instead of webapp.i try to create simple web page for check webapk creation process. according to content of this link WebAPKs on Android :
Installing a PWA on Android does more than just add the Progressive Web App to the user's Home Screen. Chrome automatically generates and installs a special APK of your app. We sometimes refer to this as a WebAPK.
and for doing this, according Install criteria, site must meet the following criteria:
The web app is not already installed
Meets a user engagement heuristic
Be served over HTTPS
Includes a Web App Manifest that includes:
short_name or name
icons - must include a 192px and a 512px icon
start_url
display - must be one of fullscreen, standalone, or minimal-ui
prefer_related_applications must not be present, or be false
Registers a service worker with a fetch handler
- Starting in mid-2021, Chrome will require that the fetch event handler return a valid response when the device is offline, see Improving Progressive Web App offline support detection for complete details and timelines.
by preparing this list ,'add X to Home Screen' menu item rename to 'install X' but, after install process, chrome logo already exist. it seems that install process not happen or start and fail and only create shortcut happen. i also search internet for find any exist wepPAK example but not found. for example https://airhorner.com/ or https://www.makemytrip.com/ has same problem
any body can help me what can i do for create webAPK or remove chrome logo? tanks.
UPDATE:
by thanks of mathias for his suggestion, i installed lighthouse plugin in chrome, check and fix all item in generated report.
lighthouse report after fix all item
but problem still exist.i don't know why.every things seem OK!
UPDATE:
Like this issue, problem solved when use VPN and i think it will be due to sanctions against Iran. down with sanctions.